US4664391A - Apparatus for retaining a liquid phase, between a wall and a rotary member passing therethrough - Google Patents

Apparatus for retaining a liquid phase, between a wall and a rotary member passing therethrough Download PDF

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Publication number
US4664391A
US4664391A US06/571,366 US57136684A US4664391A US 4664391 A US4664391 A US 4664391A US 57136684 A US57136684 A US 57136684A US 4664391 A US4664391 A US 4664391A
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US
United States
Prior art keywords
liquid phase
rotary member
axis
retaining
rotation
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Expired - Fee Related
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US06/571,366
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English (en)
Inventor
Jean Barra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rio Tinto France SAS
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Aluminium Pechiney SA
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Publication date
Application filed by Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Assigned to ALUMINIUM PECHINEY, A FRENCH CORP reassignment ALUMINIUM PECHINEY, A FRENCH CORP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BARRA, JEAN
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Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
    • B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/34—Seals or gaskets for filtering elements

Definitions

  • the invention concerns a retaining apparatus, between a fixed wall and a rotary member passing therethrough, for retaining a liquid phase which is possibly charged with solid materials forming a suspension, in order to provide a sealing arrangement for eliminating friction, while however accepting limited leakage of the liquid phase.
  • a flexible sealing arrangement is to be positioned in such a way as to provide for an axial movement of limited amplitude, while retaining an efficient sealing action.
  • a sealing arrangement between the rotary and the fixed parts of such a machine is required and may draw inspiration from the sealing arrangements which are intended for small-diameter drive shafts.
  • Rotary filters of that kind which are highly appreciated in the field of separating liquid and solid phases from suspensions resulting from ore attach operations, in accordance with hydrometallurgical processes, are described for example in ⁇ Chemical Engineers Handbook ⁇ pages 978 to 981, by John H Perry, edition McGraw Hill Book Company 1950, or in U.S. Pat. No. 3,948,779.
  • rotary disc-type filters comprise an array of disc which are fixed in a parallel arrangement on a hollow horizontal shaft in which a suction force is produced.
  • Each disc is formed by a plurality of independent section members lined with metal gauze and/or filtering textile bags, which are connected to the above-mentioned hollow horizontal shaft.
  • the disc provided with their sector members are immersed in a feed trough for feeding the suspension to be filtered, the solid phase being caused to cling to the filtering gauzes by the suction effect while the liquid phase which is separated off flows away in the horizontal collector shaft by means of connections which are provided between each section member and the shaft itself.
  • the solid phase which is disposed on the filter gauze is then dried when it passes through the free air, and then removed by scraping the filtering surfaces by means of a scraper.
  • the increased-size sealing arrangements are of lower efficiency as they require much lower speeds of rotation, while consuming, in proportion, a much larger amount of energy.
  • the apparatus for retaining a liquid phase which is possibly charged with solid materials forming a suspension, between a fixed wall and a rotary member passing therethrough is characterised in that said apparatus comprises:
  • a collar member which is joined to the wall, being of inside diameter which is at least equal to the outside diameter of the ring, being provided with a means for longitudinal positioning thereof on said wall through which the rotary member passes, and a transverse adjusting and locking means for preventing rotary movement thereof.
  • the rotary member to which the apparatus according to the invention is applied may be of any transverse dimension, that is to say, it may be of a diameter which may be from the diameter of a conventional pump shaft up to the diameter of rotary filters, for example.
  • this apparatus is more particularly an attractive proposition in regard to rotary members which are of a diameter that is at least equal to 500 mm.
  • the rotary member which is a drive shaft is generally of circular section tub it may be of polygonal or elliptical section.
  • the partition member which is of circular shape and which is fixed with respect to the rotary member is preferably a planar surface which is disposed in a plane perpendicular to the rotary member.
  • the partition member may also be a more elaborate surface such as frustoconical, cylindro-conical, hemispherical, convex or concave . . .
  • the above-mentioned partition member is also provided on its periphery with at least one planar surface serving as a bearing surface which is disposed in a plane perpendicular to the axis of rotation of said member.
  • Rigidly joined to the above-mentioned bearing surface is a concentric surface, that is to say, a surface which is coaxial with the rotary member.
  • the ring Disposed in the space defined by the bearing surface or surfaces and the concentric surface is a retaining ring which bears on the bearing surface or surfaces.
  • the ring may be made for example of a machined or cast metallic material, for example made for cast iron, ordinary or special steels, light aluminium-base alloys or powder metallurgy.
  • the ring may also be made by moulding natural or synthetic polymer materials such as rubbers, polyamides, polyimides, polyesters and halogenated polymers.
  • the retaining ring may be of a section of type as varied as a square section, a rectangular section, a circular section or a section in the form of the letters H, L, T and U.
  • the collar or shroud member which is a cylindrical surface has an inside diameter that is at least equal to or slightly greater than the outside diameter of the ring.
  • the difference in diameter essentially depends on the size of the solid matter contained in the liquid phase and is zero when there is no solid material in the liquid phase. In consequence, leakage which is limited or zero occurs between those two components.
  • the extent of the covering effect afforded by the collar may be partial or total, depending on the level of the liquid phase.
  • the position of the collar with respect to the retaining ring may be determined by longitudinal and transverse adjusting means of known types. As soon as the appropriate adjustment has been set, the collor is held in position by locking means which are also well known.
  • the collar may be of a section of type as varied as I, L, T or inverted U section.
  • the collar or the partition member may be made of a flexible material such as for example rubber.
  • FIGS. 1 to 6 illustrating the invention.
  • FIG. 1 shows a view in vertical section of the apparatus according to the invention for retaining a liquid phase, between a fixed wall and a rotary member passing therethrough,
  • FIG. 2 shows a view in vertical section of another apparatus according to the invention for retaining a liquid phase, between a fixed wall and a rotary member passing therethrough, and
  • FIGS. 3 to 6 show a simplified view in vertical section of the alternative forms of the apparatus according to the invention.
  • the apparatus according to the invention is intended to retain a suspension 1, the liquid and solid phases of which are to be separated, as between a fixed wall 2 which is a component of a vessel or tank of a disc-type filter, and a rotary member 3 which passes through the wall 2, being a drive shaft of the filter, which is held by place by a bearing 5 and which is partially immersed in the suspension 1, at the level 4.
  • the apparatus comprises a planar partition member 6 which is fixed with respect to the rotary drive shaft member 3 and which is perpendicular to the axis thereof, the periphery thereof having a planar surface 7 which is perpendicular to its axis, forming a bearing surface, and a concentric surface 8 which is joined or fixed with respect to the bearing surface.
  • a retaining ring 9 which is of L-shaped cross-section is positioned on the bearing surface 7 and the concentric surface 8 of the partition member 6.
  • a collar or shroud 10 of U-shaped cross-section, the inside diameter of which is slightly larger than the outside diameter of the ring 9, is provided with a known means 11 for longitudinally and transversely positioning same on the fixed wall 2.
  • the bearing 5 may optionally be protected from spraying or splashing, which is a rare occurrence, by means of a barrier shown schematically at 14 which is fixed with respect to the drive shaft 3.
  • the apparatus according to the invention is intended to retain a suspension 1, the liquid and solid phases of which are to be separated.
  • the retaining action is to occur between the fixed wall 2 of the tank of a rotary disc-type filter and the drive shaft 3 (rotary member) passing therethrough, which is held in place by the bearing 5 and which is partially immersed in the suspension 1, as indicated by the level 4.
  • the apparatus comprises the partition member 6 which is in the form of a frustoconical surface which is fixed with respect to the drive shaft 3 and which is coaxial therewith.
  • the periphery of the partition member 6 has a planar surface 7 which acts as a bearing surface, and a concentric surface 8 which is joined to or fixed with respect to the bearing surface.
  • the retaining ring 9, which is of square section, is positioned on the bearing surface 7 and the concentric surface 8 of the partition member 6.
  • the collar or shroud 10 which is of L-shaped cross-section is provided with a known means 11 for transverse and longitudinal positioning thereof on the fixed wall 2.
  • the fraction of liquid 12 which escapes through the gap between the retaining ring 9 and the collar 10 is collected by a recovery means 13 providing for recycling of that fraction to the inside of the tank of the rotary disc-type filter.
  • the apparatus is intended to provide for retaining the liquid phase between the fixed wall 2 and the rotary member 3 which passes therethrough and which is partially immersed in the liquid phase 1, as indicated by the level 4.
  • the apparatus comprises the partition member 6 which is in the form of a planar surface fixed with respect to the rotary member 3 and perpendicular to the axis thereof.
  • the periphery of the partition member 6 has a planar surface 7 which acts as a bearing surface, and a concentric surface 8 which is joined to or fixed with respect to the surface 7.
  • the retaining ring 9 which is of rectangular or I-shaped cross-section is positioned on the surface 7 and the concentric surface 8 of the partition member 6.
  • the collar or shroud 10 of U-shaped cross-section is provided with a known means 11 for transverse and longitudinal positioning thereof.
  • the liquid fraction 12 which escapes through the gap between the retaining ring 9 and the collar 10 is collected by a recovery means 13.
  • the apparatus is intended to provide for retaining the liquid phase between the fixed wall 2 and the rotary member 3 which passes therethrough, being partially immersed in the liquid phase 1, as indicated by the level 4.
  • the apparatus comprises the partition member 6 which is in the form of a planar surface fixed with respect to the rotary member 3 and perpendicular to the axis thereof.
  • the periphery of the partition member 6 has two planar surfaces 7 acting as bearing surfaces, and a concentric surface 8 which is joined to the surface 7.
  • the retaining ring 9 which is of U-shaped cross-section is positioned on the surfaces 7 and the concentric surface 8 of the partition member 6.
  • the collar 10 which is of U-shaped cross-section is provided with a known means 11 for transverse and longitudinal positioning thereof.
  • the liquid fraction 12 which escapes through the clearance between the retaining ring 9 and the collar 10 is collected by a recovery means 13.
  • the apparatus is intended to retain the liquid phase between the fixed wall 2 and the rotary member 3 which passes therethrough and which is partially immersed in the liquid phase 1, at the level 4.
  • the apparatus comprises the partition member 6 which is in the form of a hemispherical surface fixed with respect to the rotary member 3 perpendicularly to the axis thereof.
  • the periphery of the partition member 6 has a planar surface 7 acting as a bearing surface, and a concentric surface 8 which is joined to the bearing surface 7.
  • the retaining ring 9 which is of L-shaped cross-section is positioned on the surface 7 and the concentric surface 8 of the partition member 6.
  • the collar 10 which is of L-shaped cross-section is provided with a known means 11 for transverse and longitudinal positioning thereof.
  • the fraction of liquid 12 which escapes through the clearance between the retaining ring 9 and the collar 10 is collected by a recovery means 13.
  • the apparatus is intended to retain the liquid phase between the fixed wall 2 and the rotary member 3 which passes therethrough, being partially immersed in the liquid phase 1 as indicated by the level 4.
  • the apparatus comprises the partition member 6 which is in the form of a frustoconical surface that is fixed with respect to the rotary member 3 and perpendicular to the axis thereof.
  • the periphery of the partition member 6 has two planar surfaces 7 acting as bearing surfaces, and a concentric surface 8 which is joined to the surfaces 7.
  • the retaining ring 9 which is of U-shaped cross-section is positioned on the surfaces 7 and the concentric surface 8 of the partition member 6.
  • the collar 10 which is of L-shaped cross-section is provided with a known means 11 for transverse and longitudinal positioning thereof.
  • the liquid fraction 12 which escapes through the gap between the retaining ring 9 and the collar 10 is collected by a recovery means 13.
  • a rotary disc-type filter comprising: a tank 2 having a capacity of 30 m 3 was a cylindrical drive shaft 3 which was 0.6 meter in diameter and on which were mounted as a parallel array: seven discs for separating the liquid and solid phases of an aqueous suspension of Al(OH) 3 having a concentration of dry matter of 0.25 tonne per cubic meter.
  • the drive shaft 3 was immersed in the suspension to a level corresponding to 50% of its diameter.
  • each disc was 3.9 meters.
  • the apparatus according to the invention comprised a planar partition member 6 which was 67 cm in diameter and which was fixed with respect to the shaft 3.
  • the partition member was provided on its periphery with a planar surface 7 forming a bearing surface and a concentric surface 8 joined to the bearing surface.
  • the partition member comprised steel.
  • a retaining ring 9 which was of I-shaped cross-section and the two largest dimensions of which were 70 cm and 58 cm, being 1 cm in thickness, was mounted on the surface 7 and the concentric surface 8.
  • the retaining ring 9 was made of neoprene.
  • the dimensions of the member 10 were identical to those of the ring, as the small size of the solid materials did not permit either of the two members to be dimensioned with tolerance.
  • the leakage at 12 was 30 liters per hour while the separation capacity of the filter was 2.5 m 3 /hour per square meter of filtering surface area.
  • a rotary disc-type filter comprising: a tank 2 with a capacity of 5 m 3 was a cylindrical drive shaft 3 which was 1.2 meters in diameter and on which were mounted as a parallel array, three discs for separating the liquid and solid phases of an aqueous suspension of Al(OH) 3 , with a concentration of dry matter of 0.25 tonne per cubic meter.
  • a drive shaft 3 was immersed in the suspension to a level corresponding to 50% of its diameter.
  • each disc was 5.2 meters.
  • the apparatus according to the invention comprised a planar partition member 6 with a diameter of 130 cm, being fixed with respect to the shaft 3. On its periphery, the planar partition member was provided with a planar surface 7 forming a bearing surface, and a concentric surface 8 joined to the bearing surface.
  • the partition member was made of steel.
  • the ring 9 was made of neoprene.
  • the dimensions of the collar 10 were identical to those of the retaining ring, as the small size of the solid materials did not permit either of the two components to be dimensioned with tolerance.
  • the amount of leakage at 12 was 50 liters/hour, while the separation capacity of the filter was 2.5 m 3 /hour per square meter of filtering surface area.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Centrifugal Separators (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Filtration Of Liquid (AREA)
  • Sealing Devices (AREA)
US06/571,366 1983-02-28 1984-01-16 Apparatus for retaining a liquid phase, between a wall and a rotary member passing therethrough Expired - Fee Related US4664391A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8303633 1983-02-28
FR8303633A FR2541745B1 (fr) 1983-02-28 1983-02-28 Dispositif de retenue d'une phase liquide entre une paroi et une piece tournante la traversant

Publications (1)

Publication Number Publication Date
US4664391A true US4664391A (en) 1987-05-12

Family

ID=9286521

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/571,366 Expired - Fee Related US4664391A (en) 1983-02-28 1984-01-16 Apparatus for retaining a liquid phase, between a wall and a rotary member passing therethrough

Country Status (16)

Country Link
US (1) US4664391A (enrdf_load_stackoverflow)
EP (1) EP0120797B1 (enrdf_load_stackoverflow)
JP (1) JPS59166224A (enrdf_load_stackoverflow)
AR (1) AR231343A1 (enrdf_load_stackoverflow)
AU (1) AU560483B2 (enrdf_load_stackoverflow)
BR (1) BR8400857A (enrdf_load_stackoverflow)
CA (1) CA1243051A (enrdf_load_stackoverflow)
DE (1) DE3465702D1 (enrdf_load_stackoverflow)
ES (1) ES286092Y (enrdf_load_stackoverflow)
FR (1) FR2541745B1 (enrdf_load_stackoverflow)
GR (1) GR73635B (enrdf_load_stackoverflow)
HU (1) HU198990B (enrdf_load_stackoverflow)
IE (1) IE55002B1 (enrdf_load_stackoverflow)
IN (1) IN162313B (enrdf_load_stackoverflow)
TR (1) TR21884A (enrdf_load_stackoverflow)
YU (1) YU42896B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991610A (en) * 1986-02-06 1991-02-12 Bernhard Huber Rinsing liquid apparatus for analytical instruments
US20060237915A1 (en) * 2005-04-25 2006-10-26 Fanuc Ltd Seal structure for a wire-cut electric discharge machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100499510B1 (ko) * 2003-04-16 2005-07-07 엘지전자 주식회사 유기 ｅｌ디스플레이 패널의 제조방법
KR100499509B1 (ko) 2003-04-16 2005-07-05 엘지전자 주식회사 유기 ｅｌ 디스플레이 패널의 제조방법

Citations (20)

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Publication number Priority date Publication date Assignee Title
US1626237A (en) * 1921-07-02 1927-04-26 Westinghouse Electric & Mfg Co Turbine gland
DE481788C (de) * 1929-09-03 Maschb Akt Ges Abdichtung fuer Drehtrommeln
US1732761A (en) * 1924-03-28 1929-10-22 Westinghouse Electric & Mfg Co Packing
US2011206A (en) * 1934-06-22 1935-08-13 Standard Oil Dev Co Seal for rotary shafts
US2428041A (en) * 1945-09-26 1947-09-30 Saywell Associates Sealing assembly
US2678835A (en) * 1946-02-08 1954-05-18 Us Navy Rotating joint
US2838451A (en) * 1954-11-13 1958-06-10 Long Everett Gas cooled nuclear reactors
US2851290A (en) * 1954-07-14 1958-09-09 Hanson Edward Axially compressible shaft seal
US2966375A (en) * 1958-09-22 1960-12-27 Commissariat Energie Atomique Sealing device for the bearings of compressors or similar machines
US2994571A (en) * 1957-03-05 1961-08-01 Renault Piston and rod packings
US3019035A (en) * 1957-12-17 1962-01-30 Orenda Engines Ltd Mounting mechanism for labyrinth seal disc
US3020185A (en) * 1958-07-28 1962-02-06 Connecticut Hard Rubber Co Wire reinforced polytetrafluoroethylene seal
US3070378A (en) * 1960-10-14 1962-12-25 Thomas B Bojako Anti-friction rotary seal
US3306223A (en) * 1964-10-22 1967-02-28 Illinois Milling Inc Water pump seal
US3455561A (en) * 1966-11-03 1969-07-15 Midland Ross Corp Centrifugal liquid seal
US3705728A (en) * 1970-12-03 1972-12-12 Trist Mouldings & Seals Ltd Rotary shaft seals
US3765688A (en) * 1971-07-19 1973-10-16 Avco Corp High speed shaft centrifuge fluid seal
DE2223222A1 (de) * 1972-04-26 1973-10-31 Bbc Brown Boveri & Cie Befestigungseinrichtung fuer eine labyrinth-wellendichtung
US3870384A (en) * 1972-09-15 1975-03-11 Federal Mogul Corp Preloading and sealing system for clutch bearings
US4330133A (en) * 1979-02-17 1982-05-18 Rolls-Royce Limited Dual-ring seal with temperature compensation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1111002B (de) * 1955-06-14 1961-07-13 Lamort E & M Abdichtung fuer schwingende Wellen von in Behaeltern umlaufenden Sichtzylindern u. dgl., insbesondere zum Aufarbeiten von Papierstoff
US3085809A (en) * 1960-04-14 1963-04-16 Gen Electric Labyrinth seal
DE1172563B (de) * 1962-11-02 1964-06-18 Seitz Werke Gmbh Siebtrommel zum Abscheiden von Etiketten in Flaschenreinigungsmaschinen
FR2097630A5 (enrdf_load_stackoverflow) * 1970-07-16 1972-03-03 Barrault Suzanne
DE2605929C3 (de) * 1976-02-14 1984-08-09 KHD Humboldt Wedag AG, 5000 Köln Drehfilter

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE481788C (de) * 1929-09-03 Maschb Akt Ges Abdichtung fuer Drehtrommeln
US1626237A (en) * 1921-07-02 1927-04-26 Westinghouse Electric & Mfg Co Turbine gland
US1732761A (en) * 1924-03-28 1929-10-22 Westinghouse Electric & Mfg Co Packing
US2011206A (en) * 1934-06-22 1935-08-13 Standard Oil Dev Co Seal for rotary shafts
US2428041A (en) * 1945-09-26 1947-09-30 Saywell Associates Sealing assembly
US2678835A (en) * 1946-02-08 1954-05-18 Us Navy Rotating joint
US2851290A (en) * 1954-07-14 1958-09-09 Hanson Edward Axially compressible shaft seal
US2838451A (en) * 1954-11-13 1958-06-10 Long Everett Gas cooled nuclear reactors
US2994571A (en) * 1957-03-05 1961-08-01 Renault Piston and rod packings
US3019035A (en) * 1957-12-17 1962-01-30 Orenda Engines Ltd Mounting mechanism for labyrinth seal disc
US3020185A (en) * 1958-07-28 1962-02-06 Connecticut Hard Rubber Co Wire reinforced polytetrafluoroethylene seal
US2966375A (en) * 1958-09-22 1960-12-27 Commissariat Energie Atomique Sealing device for the bearings of compressors or similar machines
US3070378A (en) * 1960-10-14 1962-12-25 Thomas B Bojako Anti-friction rotary seal
US3306223A (en) * 1964-10-22 1967-02-28 Illinois Milling Inc Water pump seal
US3455561A (en) * 1966-11-03 1969-07-15 Midland Ross Corp Centrifugal liquid seal
US3705728A (en) * 1970-12-03 1972-12-12 Trist Mouldings & Seals Ltd Rotary shaft seals
US3765688A (en) * 1971-07-19 1973-10-16 Avco Corp High speed shaft centrifuge fluid seal
DE2223222A1 (de) * 1972-04-26 1973-10-31 Bbc Brown Boveri & Cie Befestigungseinrichtung fuer eine labyrinth-wellendichtung
US3870384A (en) * 1972-09-15 1975-03-11 Federal Mogul Corp Preloading and sealing system for clutch bearings
US4330133A (en) * 1979-02-17 1982-05-18 Rolls-Royce Limited Dual-ring seal with temperature compensation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991610A (en) * 1986-02-06 1991-02-12 Bernhard Huber Rinsing liquid apparatus for analytical instruments
US20060237915A1 (en) * 2005-04-25 2006-10-26 Fanuc Ltd Seal structure for a wire-cut electric discharge machine
US7687739B2 (en) * 2005-04-25 2010-03-30 Fanuc Ltd Seal structure for a wire-cut electric discharge machine

Also Published As

Publication number Publication date
ES286092Y (es) 1986-08-01
HU198990B (en) 1989-12-28
EP0120797A1 (fr) 1984-10-03
EP0120797B1 (fr) 1987-09-02
IN162313B (enrdf_load_stackoverflow) 1988-04-30
GR73635B (enrdf_load_stackoverflow) 1984-03-26
DE3465702D1 (en) 1987-10-08
JPS59166224A (ja) 1984-09-19
IE55002B1 (en) 1990-04-11
JPH0118769B2 (enrdf_load_stackoverflow) 1989-04-07
YU42896B (en) 1988-12-31
AU2511984A (en) 1984-09-06
CA1243051A (fr) 1988-10-11
IE840458L (en) 1984-08-28
FR2541745A1 (fr) 1984-08-31
FR2541745B1 (fr) 1985-06-21
HUT39847A (en) 1986-10-29
BR8400857A (pt) 1984-10-02
YU36184A (en) 1986-12-31
AR231343A1 (es) 1984-10-31
AU560483B2 (en) 1987-04-09
TR21884A (tr) 1985-10-03
ES286092U (es) 1986-01-01

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